05 July 2016

setup permulaan router Cisco IOS


List nic
  • show interfaces description
Gi0/0                          up             up
Gi0/1                          admin down     down
Gi0/2                          admin down     down
Lo0                            up             up




Configure vIOS routers as following.
Router>en
Router#conf t
Router(config)#hostname vOS-I
vIOS-I(config)#interface GigabitEthernet 0/0
vIOS-I(config-if)#ip address 172.16.1.1 255.255.255.0
vIOS-I(config-if)#no shutdown
vIOS-I(config-if)#do wr




List Routing Table
Router2#show ip route

Default GW
Router(config)#ip route 0.0.0.0 0.0.0.0 192.168.1.6



Enable SSh @ router
http://www.firewall.cx/cisco-technical-knowledgebase/cisco-routers/1100-cisco-routers-ssh-support-configuration-rsa-key-generation.html

Router (config)# username admin privilege 15 secret Firewall.cx      (Firewall.cx <- nbsp="" password="" ssh="" strong="" to="">
Router (config)# aaa new-model
Router (config)# aaa authentication login default local
Router (config)# enable secret $FirewAll.cx!           <- en="" mode="" nbsp="" password="" strong="" to="">
Router (config)# service password-encryption


R1(config)# line vty 0 4
R1(config-line)# transport input ssh
R1(config-line)# login authentication default
R1(config-line)# password $Cisco!    <- aaa="" authentication="" cisco="" guna="" nbsp="" ni="" pakai="" password="" sebab="" strong="" tak="">


Generating RSA key  (selagi takde key, ssh port tak enable)
R1 (config)#  ip domain-name firewall.cx
R1(config)# crypto key generate rsa 
The name for the keys will be: R1.firewall.cx
Choose the size of the key modulus in the range of 360 to 4096 for your General Purpose Keys. Choosing a key modulus greater than 512 may take a few minutes.                                                                                                                                                                                                     How many bits in the modulus [512]: 4096
% Generating 4096 bit RSA keys, keys will be non-exportable...
[OK] (elapsed time was 183 seconds)



OSPF:

Remove ospf process:
R1(conf)#  no router ospf 1

09 June 2016

git branch

ref:  https://git-scm.com/book/en/v2/Git-Branching-Branches-in-a-Nutshell

06 May 2016

Python virtual environment


mkvirtualenv [-a project_path] [-i package] [-r requirements_file] [virtualenv options] ENVNAME
lsvirtualenv [-b] [-l] [-h]

showvirtualenv [env]

rmvirtualenv ENVNAME

workon [(-c|--cd)|(-n|--no-cd)] [environment_name|"."]

deactivate

lssitepackages

virtualenvwrapper
ref: http://virtualenvwrapper.readthedocs.io/en/latest/command_ref.html

04 April 2016

Domain Shadowing

In an attack that includes domain shadowing, an attacker will log into the domain register's website to set up a new subdomain registered to a new server IP address. By registering many subdomain names and IP addresses, attackers are able to avoid blacklists, but it does not allow attackers to bypass reputation-based filters.


ref:
http://searchsecurity.techtarget.com/answer/What-is-domain-shadowing-and-how-can-enterprises-defend-against-it

angler Exploit Kit

reading for non technical


https://heimdalsecurity.com/blog/ultimate-guide-angler-exploit-kit-non-technical-people/

23 March 2016

Milik siapa fail itu

mencari fail tertentu milik pakej yang mana.

M4700:~$ dpkg --search /usr/include/openssl/ssl.h
libssl-dev:amd64: /usr/include/openssl/ssl.h

19 February 2016

LAG on PowerConnect

Notes:

LAG(Ling Agregation Group) adalah features utk kombine 2 atau lebih kabel/port utk bekerja sebagai satu group. Boleh pilih mode:
  1) failover(master mati, secondary ambil alih),
  2) LACP(Link Agregation Control Protocol)

Kalau nak guna LACP, both end kena suport dan enable dulu.

Untuk PowerConnect, boleh pilih utk enable atau tak pada menu:
   Switching --> Link Agregation -->  LAG Membership
Enable LACP on channel 1 and 2





Tapi ada kemungkinan pada remote port tak support LACP, maka setiap kali enable LACP, kena semak status LAG samaada up atau down di:
   Switching --> Porst --> LAG Configuration (ShowAll)
LAG Status pada Channel 2 Down




ref:
http://www.juniper.net/documentation/en_US/junos15.1/topics/concept/interfaces-lag-overview.html